# L6911B Power Supply Controller

## Overview
️· Designed for DC/DC conversion, specifically for Pentium II microprocessors.
️· Features a 5-bit digital-to-analog converter (DAC) for output voltage adjustment.

## Key Features
️· Output Voltage: Adjustable from 1.3V to 3.5V.
- 1.3V to 2.05V with 0.05V steps.
- 2.1V to 3.5V with 0.1V steps.
️· Accuracy: +/-1% output voltage accuracy.
️· Control: Voltage mode PWM control.
️· Protection:
- Overvoltage protection (OVP).
- Overcurrent protection (OCP).
- Short circuit protection (hiccup mode).
️· Other Features:
- Power Good (PGOOD) output.
- Fast load transient response.
- Internal high-precision, digitally trimmed reference.
- Soft start.
- Disable function.
- Operating frequency: 50kHz to 1MHz.

## Electrical Characteristics
️· Supply Voltage: 5V to 12V.
️· Oscillator Frequency: Adjustable via external resistor (RT). Default 200kHz.
️· Current Limits: Various limits defined for gate drivers and protection circuits.

## Pinout (Selected Pins)
️· VCC: Device supply voltage (5V-12V)
️· GND: Ground.
️· VFB: Feedback input.
️· UGATE/LGATE: Upper/Lower gate drivers.
️· BOOT: Bootstrap capacitor connection.
️· OCSET: Overcurrent protection setting.
️· SS: Soft start capacitor connection.
️· RT: Oscillator frequency adjustment.
️· PGOOD: Power Good output.
️· VID0-VID4: Digital input for DAC configuration.

## Package
️· SO20 package.
️· Detailed mechanical dimensions provided.